I have many bikes with all the groupsets. I like Dura Ace 9000 the best. The cables, levers and derailors just seem to work the best. I have to say I like the Campy SR11 a close second. The only thing I do not like about Campy is parts availability in the U.S. I recently broke the bolt which holds the two halves of my Ti SR cranks together and had to oder it from Italy. It took my local bike shop twenty days to get. All the usual ebay suppliers were out! You can find Shimano anywhere in the US!

really Mark? the DA9000 leapfrogs SR11?

although, i would definitely keep my SR11...i am willing to upgrade from DA7900 to DA9000 on my other bike...if it is that much better. i know there's another thread on this subject...and i have read alot on it. i think its time to retire my DA7900.

I recently broke the bolt which holds the two halves of my Ti SR cranks together and had to oder it from Italy. It took my local bike shop twenty days to get. All the usual ebay suppliers were out! You can find Shimano anywhere in the US!

My current ride is SR, but 9000 is unbelievable. As a strong di2 proponent, the 9000 mechanical really makes me think twice.Unlike some other posters, I have a preference FOR the thumb button on the ergo shifters. I would love to come up with a workaround on the 9000 shifters to get a thumb button on there. If I were to go back to di2, I'd definitely install a couple accessory buttons near where the ergo thumbs are, and possibly reconfigure the other lever and disable the other button...I see dual control like the original Rapidfire push-push Mtb shifters of 1990, and ergo like the Rapidfire plus with a trigger that came after. It just seems much more intuitive to me.

sram is usually always the lightest, but it always shifts the worst in comparison tests. its not preference, if you go out and buy SR you will love it, if you ride SR then to try DA you will buy DA, if your concerned about weight you buy SR, if you want performance its DA, nothing at all to do with preference.

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